PXD067622-1

PXD067622 is an original dataset announced via ProteomeXchange.

Title	DNA-Protein Crosslinks Promote cGAS-STING-driven Premature Aging and Embryonic Lethality
Description	DNA-protein crosslinks (DPCs) are severe DNA lesions that disrupt replication, transcription, and genome stability. However, their role in development and aging remains poorly understood. Here, we show that impaired SPRTN function, a metalloprotease essential for DPC repair during replication and mitosis, leads to DNA damage, mitotic abnormalities, and activation of the immune system. Notably, micronuclei formed upon SPRTN deficiency frequently contain DPCs, exhibit nuclear envelope rupture, and accumulate unrepaired DNA, thereby facilitating activation of the cGAS-STING pathway. Using a Sprtn knock-in mouse model of Ruijs Aalfs progeria syndrome, we demonstrate that chronic cGas-Sting activation drives inflammation, innate immune responses, and embryonic lethality. Surviving mice display a continuum of aging phenotypes from embryogenesis into adulthood. Genetic or pharmacological inhibition of cGas-Sting rescues embryonic viability and ameliorates progeroid features, linking DPC-induced innate immune activation to lifespan defects. Our findings uncover a previously unrecognized role for DPCs in coupling early developmental failure to premature aging.
HostingRepository	PRIDE
AnnounceDate	2025-09-30
AnnouncementXML	Submission_2025-09-29_21:25:33.796.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Thorsten Mosler
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2025-08-22 13:06:23	ID requested
⏵ 1	2025-09-29 21:25:34	announced

Dataset with its publication pending

submitter keyword: Emrbyo,SPRTN, DPC

Ivan Dikic
contact affiliation	Institute of Biochemistry II, Faculty of Medicine, Goethe University Frankfurt; Frankfurt, Germany.
contact email	dikic@biochem2.uni-frankfurt.de
lab head
Thorsten Mosler
contact affiliation	Goethe University Clinics Frankfurt
contact email	thorstenmosler@googlemail.com
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD067622
     1. Label: PRIDE project
     2. Name: DNA-Protein Crosslinks Promote cGAS-STING-driven Premature Aging and Embryonic Lethality